Am I the only one around here who is irritated by people referring to Bavarian wheat beers as a "hefe," or "hef," or worst of all, "heff"? Really, you want to make a yeast? Or maybe a yeas? They're wheat beers, whichever language you use. Use weizenbier if you must, but why all the focus on the first part of the word, when it clearly is not a description of the variety of beer inside?
It's a good thing I just read about this. Were anyone ever to ask me for a "hef" while at my home, I'd be offering up a pint of yeast slurry. I'd make damn sure he/she drank it, too.